@article{IM2_2005_69_4_a8,
     author = {M. I. Shtogrin},
     title = {On~the structure of~faces of~three-dimensional polytopes},
     journal = {Izvestiya. Mathematics },
     pages = {847--864},
     publisher = {mathdoc},
     volume = {69},
     number = {4},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2005_69_4_a8/}
}